Amid tight security, polling for Mizoram's 40-member legislative assembly began at 7 am. Madhya Pradesh went to the polls an hour later at 8 am, apart from the Maoist-affected Balaghat district where polling again began at 7 am. Starting an hour earlier will also polling to end before it gets dark.

Mizoram is one of three states currently under Congress rule, while the BJP has been in power in Madhya Pradesh for the last 15 years. The BJP has never formed a government in Mizoram.

The Congress and the MNF (Mizoram's second party) are contesting all 40 constituencies in the state, while the Bharatiya Janata Party (BJP) is fighting in 39 seats.

In the Champhai South, the incumbent Chief Minister would contest against MNF`s T J Lalnuntluanga and ZPM`s C Lalremliana.

Preparations have also been made for 12,026 Bru refugees who are lodged in six relief camps of Tripura to cast their votes at Kanhmun village in Mamit district where 15 temporary polling stations have been set up.